Oil-burner.



H. w. MANNING.

OIL BURNER, APPLQCATION men APR. 27. 1916.

1,209,603. v Patented Dec.'19,1916.

v INVENTOH 9 14/ Mann/77g matron era one lhjl a a OIL-BURNEBJ.

' naoacoe.

' To all whom it may concern:

Be it known that I, HARRY W. MANNING, a citizen of the United States, anda resident of the city of Portland, county of Multnomah, State of Oregon, have invented a new and useful Improvement in Oil-Burners, of which the following is a specification.

My invention relates in general to oil burners adapted for using crude oil, kerosene or distillate as fuel.

The ob'ect 'of my invention is to provide for the efficient heating of the coils through which the liquid fuel passes and thus remote the vaporizing of the fuel oil in a s ort interval of time.

Another and particular object of my invention is to provide means for preventin the burner becoming flooded with fuel oi because ofthe accidental extinguishing of the flame While the burner is in action. I attain the latter result by providing in my burner an auxiliary vaporizing chamber provided with the discharge orifice, and providing acheck valve at the inlet end of such auxiliary vaporizing chamber. and means for heating the latter; the check valve being so arranged that the pressure of the oil behind the valve will tend to close the same. When my burner is in normal action, a sufiicient back pressure of gas will be maintained in the auxiliary vaporizing chamber to keep the check valve open for the passage of fuel gas; but when the auxiliary vaporizing chamberis no longer heated then the check valve will be automatically closed. The de= tails of this and other features of my invention are hereinafter fully described, reference being had to the accompanying drawings, in which:

Figure l is a vertical section of my device; and Fig. 2 is a plan view of the base with the auxiliary generator well mounted thereon.

In these drawings, a represents the base "of the burner, b is a circular rib. formed thereon, and c is a generator well also formed integrally with the base. A circular, segmental auxiliary generator well d 18 mounted on legs 6, the latter bein positioned outside of the rib b, which orms a.

guide for locating the parts in their proper relative ositions. The burner-head f is shaped li e an inverted cup, being provided with a centrally located, downwardly projecting neck 9 and an inclined outer face 72,,

the lower edge of which is formed with a Specification of Zetters Eatent.

as shown. in Fig. 1.

Patented Dec. Ml, rare,

, w Application filed April 27, 1916. Serial No. M3970.

peripheral shoulder i. Said burner-head f is mounted on legs j, which are positioned inside of the rib b, the legs being formed integrally with the head. The upper ends of .the le s are furthermore rovided with outr is an open-ended gauze cylinder, adapt= ed to seat on the shoulder a of the burner-.

head, and s is a burner-cap adapted to fit over the burner-head, being supported on the upper edge of the gauze.

The tubular coil m, which is concentric with the burner-head f, rests onthe lugs 7c,

, and is connected at its inlet end to a fuel supply conduit 26, the latter being connected with a suitable supply pressure tank, not shown. It is also to be assumed that the supply conduit t is provided at some convenient point with a valve by means of which the flow of oil to the burner may be controlled, but as this construction is well known, and forms no part of my invention, it is not detailed herein. llhe outlet end of the coil m is connected to a vertical leg u, by means of an elbow e. The line of the fuel flow is thence through the elbows w, :0, y and the horizontal header 2. The latter tends radially toward the center of the burner and overlies the well 0. ltlounted on the end of the horizontal header 2 is a valved fuel nozzle 2, of usual construction, the regulating arm of which is indicated by 3. The head e of this nozzle projects upwardly through the orifice p in the '3 fitting 0, and the vapors are discharged upwardly through this head in the form. of a jet. The lower portion of the nozzle 52 is provided with a removable reservoir cap 5, adapted to receive any sediment deposited from the oil.

The elbows at and y connect with a nipple 7 in which is provided a ball check-valve 6, aperture of the diaphragm in said hi controlled by said valve 6, is lar 'er Ellie ll. the discharge orifice of the nozzle A. pipe 55 extends downwardly from the dome and is provided at its lower with elbow 9 (all - behind it. The auxiliary vaporizing chamwhich supports an auxiliary horizontal burner 10, the end of which is closed, and the body of which is pertlorated so as to emit gas jets for heating said header 2. The header 2 functionates as an auxiliary vaporizing chamber. As shown, the auxiliary burner 10 underlies the auxiliary vaporizing chamber 2,but said burner 10 may be otherwise located as convenient.

The function of-the auxiliary burner is to insure that the auxiliary vaporizing chamber 2 is kept sufliciently heated at all times to cause the generation therein of a fuel'gas at a suflicient rate to effect a back pressure at the check valve orifice which will keep the check valve 6 open against the, drag of the fuel gas flowing through said check valve. For otherwise, as apparent, when once the check ralve had been seated by the drag of the fluid flowing through it, it would be held shut by the pressure of the. fluid ber z and auxiliary burner 10 alsolpermit my burner to be turned low without danger of going out through insufficientvaporiza-' tion of the fuel oil.

Should the main burner and the auxiliary burner 10 be accidentally extinguished, then the header 2 will cool rapidly, decreasing the pressure of vaporized fuel therein to a point where the pressure of oil behind the check valve will close the latter, thus cutting oil" a further flow of oil through the check valve and preventing the burner from becoming flooded with the fuel oil. \Vhen the header e is again heat-ed, the check valve would-be automatically released so as to permit the passage of fuel gas. \Vhen first starting the burner, the wells 0 and (Z have placed in them asbestos waste or other suitable material which is saturated'with alcohol, or other inflan'nnable fluid,and ignited; and as soon as the burner has been suflieiently heated the liquid fuel may be turned on gradually and the burner operated in the usual manner. The air drawn in through the lateral inlet tubes (1 by the injection action will thoroughly mix with the gas in the mixing chamber of the burner cap or gas dome s, the lnterinixti'ire be'i'ng emitted through the perforations of the gauze cylin-- der r. The generator wells for preheating the oil are located close to the coil m and header 2, so as to quickly heat and vaporize the' oil The auxiliary burner 10 also elliciently serves to keep the header 2- constantly hot, in this wise insuring a'n eflicient head of gas, and the arrangement last referred to.

nozzle at its outlet end, and a check valve controlling the inlet end of such auxiliary vaporizing chamber, saidcheck valve being normally open and adapted to be closed by the drag of the fluid flowing through the same, said auxiliary vaporizing chamber being heated by the burner during the opera.- tion of the. latter, whereby, in the normal action of the burner, a back pressure of gas is maintained in said auxiliary vaporizing chamber suiiicient to resist the closing of the check valve, but permitting the latter to close when the heating of said vaporizing chamber is discontinued.

2. In an oil burner of the character mentioned, the combination of an auxiliary vaporizing chamber provided with the burner nozzle at its outlet end, a check valve controlling the inlet end of such auxiliary vaporizing chamber, said check valve being normally opelrand adapted to be closed by the drag of the fluidl fiow'ing through the same, and an auxiliary; burner arranged for heating said auxiliary, vaporizing chamber and supplied witlrfuel from the gas chamber of the burner, whereby, in the normal action of the burner, a back pressure of gas is maintained in said auxiliary vaporizing chamber suflicient to resist the closing of the check valve, but permittingthe latter to close when the heating of said vaporizing chamber is discontinued.

HARRY W. MANNING. 

